I could see him surpassing Neymar in a year or two. Far more effective and relentless attacker for his age compared to Ney, easily the better IQ.
He's in a position to be one of the best ever when it's all said and done. On pace to be amongst the top all time scorers in both CL and the World Cup (just judging by his early rate). All he has to do is not get injured and develop as expected.
Really the perfect attacking profile. Like an R9/young CR without CR's wasteful dribbling and better passing/decision making.